/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

import { Pipe, PipeTransform } from '@angular/core';
import { PeCategory, PipelineElementUnion } from '../model/editor.model';

@Pipe({ name: 'pipelineElementGroup' })
export class PipelineElementGroupFilterPipe implements PipeTransform {
    transform(
        pipelineElements: PipelineElementUnion[],
        category: PeCategory,
    ): PipelineElementUnion[] {
        return pipelineElements.filter(pe => {
            if (
                (!pe.category || pe.category.length === 0) &&
                category.code === 'UNCATEGORIZED'
            ) {
                return true;
            } else {
                return pe.category.find(c => c === category.code) !== undefined;
            }
        });
    }
}
